Hydrocarbon burner



H. H. HQLCOMB E? im HYDROGARBON BURNER Filed June 2, 192e iHYDROCARBON BURNER.

I Application filed June 2,

Our present invention l pertains to hy`drocarbon burners and contemplates the provision of a burner adapted to facilitate the combustion of commingledl oil and steam,

the saidf burner being simple and inexpen-l sive in construction, being made up of elements adapted to be readily a'ssem led and as readily' disconnected, Vand bemg so characterized thatthe commingled Asteam and lillustrative of the preferred embodiment of our invention. n A

Figure 2 is a top plan view ofthe same.

Figure 3 -is an end elevation taken from a view point at the right of Figure 2, l A

Similar numerals of reference designate corresponding parts in all of the views of the drawings. v

Among -other elements our novel burner comprises a. tube section 1, which is preferably an appropriate length of type and is enteriorly threaded at its heel end as designated by 9J. The Asaid tube 1 is the outer tube of the burner and encloses an inner tube 3 and a central tube 4, the-tubes 1, 3 and 4 being of the relative diameters illustrated so that a space 5 is formed'about the tube and between the same and the other tube 1, while a space 6 is formed about the central tube 4 and between said tube 4 and the tube 3; the forward end of the outer tube 1 being open as is also the forward end of the central tube 4 and the forward. end of `the tube 3, and the forward ends of the said spaces being also open. 'lhe tube 3 is threaded at its heel end as designated by 7 and theV central tube 4 is threaded at its heel or rear'end as designated by 3, and it will be noted that the central tube 4 eX-v tends beyond the ends of the tube 3, and this about the proportional distance illustrated in Figure 1. An elbow 9 is turned on the rear end of the tube 4 and is adapted to be connected by a suitable conduit, not shown, with the sourcev of'hydrocarbon fuel supply. 'lhe rear threaded portion of the tube 4 also Serves for the connection of the rear por- 1926. serial No. 113.214.

tion of a hollow head 10, 'the intermediate portion of which is turned on and supported by the tube 3, while the forward portion Ot' said head is threaded and turned on and connected' to the rear erd of the outer tube 1. Thus it will be understood that the -hollow head 10 effects connection of the central tube 4 and the intermediate tube 3 with the outer tub'el, and also serves to Amaintain the several tubes 1, 3 and 4 in the spaced arrangement illustrated in Figure 1, and'necessary to the properoperation of our novel burner.

The hollow head`10 is provided at 11 with an arm for the connection of a conduit,

not shown, designed to lead from a source of steam supply, and said hollowhead is provided at 12 with oppositely directed lateral arms which terminate in upstanding por tions 1 designed to conduct air from the interior of a fire box where the air is necessar-` ily of a comparatively high temperature to the heel endof the outer tube 1 so that the suction maintained by the forcible passage of steam through the tube 3 and between the wall of said rtube .3 and the central tube 4 will have the effect of drawing air into the steam and oil with the result that thecombustion of the fuel will be maintained at a high degree of efficiency.

In the above connection, itj will be noted that the steam will be jetted forwardly. to

the forward end of the tube 4 and about saidl tube 4 in annular fashion so that the-fuel or oil will be adequately vaporized in the forward end or at the forward end of the outer tube 1 at which point an adequate amount of air will at all times be supplied to the burning fuel.

' We `have specifically described the construction and relative arrangement of the parts embraced in the present and preferred 'embodiment of our invention in or.- der to impart a full, clear and exact understanding of the said embodiment. We, de notv desire, however, to be understood as limiting ourselves to the precise, structure disclosed, our invention being defined by 'our appended claims within the scope of which modifications may be made without departure from our invention.

rlbe burner is designed to save fuel and the embodiment of the invention illustrated herein is preferred because it assures heating of both air and oil before combustion.

Having described our invention, what we llO claim' and desire to secure by Letters Patent, 1s:- n

l. In a burner and 1n combination, a tube exteriorly threaded at its rear end, .a central tube of comparatively small diameter arranged longitudinally in the first-named tube and extending rearwardly from the same and provided' with an exteriorly threaded rear portion, and an intermediate Lube arranged in the first named tube and spaced therefrom and also arranged about f the central tube and spaced therefrom and extending rearwardly from the first-named tube to an intermediate point in the length of the central tube, and a hollow heady threaded at its rear side on the threaded por- I tion of the central tube an-dalso threaded tral tube of comparatively small diameter arranged longitudinally in the irstnamed tube and extending rearwardly from the same and provided with an exteriorly threaded lrear portion, and an intermediate tube arranged in the first named tube and spacedt-herefrom and also arranged about the central 'tube and spaced therefrom and extending rearwardly. from the irSt-named tube to an intermediate point in the length of the central tube, and a hollow head threaded at its rear side on the threaded portionof the central tube and also threaded at an intermediate point on the rear .end of the third named or intermediate tube and further threaded at itsforward side on the rear end of the outer or first-named tube. and having oppositely directed lateral arms at substantial right angles to the several tubes and adapted for the supply of air to the 'rear endof the outer' tube; the said .lateralarms of the hollow head being equipped with upturned open terminals'for the admission of air from the interior of a lirebox .to the 'said arms. Y i

In testimony whereof we atix our signatures. .v

HENRY H. HOLCOMBE.

WILLIAM A. BARTSCHMID. 

